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  • C07D—HETEROCYCLIC COMPOUNDS
  • C07D313/00—Heterocyclic compounds containing rings of more than six members having one oxygen atom as the only ring hetero atom
  • C07D313/02—Seven-membered rings
  • C07D313/06—Seven-membered rings condensed with carbocyclic rings or ring systems
  • C07D313/10—Seven-membered rings condensed with carbocyclic rings or ring systems condensed with two six-membered rings
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  • C07—ORGANIC CHEMISTRY
  • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
  • C07C41/00—Preparation of ethers; Preparation of compounds having groups, groups or groups
  • C07C41/01—Preparation of ethers
  • C07C41/16—Preparation of ethers by reaction of esters of mineral or organic acids with hydroxy or O-metal groups
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  • C07—ORGANIC CHEMISTRY
  • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
  • C07C43/00—Ethers; Compounds having groups, groups or groups
  • C07C43/02—Ethers
  • C07C43/03—Ethers having all ether-oxygen atoms bound to acyclic carbon atoms
  • C07C43/14—Unsaturated ethers
  • C07C43/162—Unsaturated ethers containing rings other than six-membered aromatic rings
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  • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
  • C07C49/00—Ketones; Ketenes; Dimeric ketenes; Ketonic chelates
  • C07C49/587—Unsaturated compounds containing a keto groups being part of a ring
  • C07C49/753—Unsaturated compounds containing a keto groups being part of a ring containing ether groups, groups, groups, or groups
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  • C07—ORGANIC CHEMISTRY
  • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
  • C07C69/00—Esters of carboxylic acids; Esters of carbonic or haloformic acids
  • C07C69/74—Esters of carboxylic acids having an esterified carboxyl group bound to a carbon atom of a ring other than a six-membered aromatic ring
  • C07C69/757—Esters of carboxylic acids having an esterified carboxyl group bound to a carbon atom of a ring other than a six-membered aromatic ring having any of the groups OH, O—metal, —CHO, keto, ether, acyloxy, groups, groups, or in the acid moiety
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  • C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
  • C07D307/02—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings
  • C07D307/26—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member
  • C07D307/30—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
  • C07D307/32—Oxygen atoms
  • C07D307/33—Oxygen atoms in position 2, the oxygen atom being in its keto or unsubstituted enol form
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  • C07D307/77—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom ortho- or peri-condensed with carbocyclic rings or ring systems
  • C07D307/93—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom ortho- or peri-condensed with carbocyclic rings or ring systems condensed with a ring other than six-membered
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  • C07—ORGANIC CHEMISTRY
  • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
  • C07C2601/00—Systems containing only non-condensed rings
  • C07C2601/12—Systems containing only non-condensed rings with a six-membered ring
  • C07C2601/14—The ring being saturated
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  • C07C2603/00—Systems containing at least three condensed rings
  • C07C2603/56—Ring systems containing bridged rings
  • C07C2603/58—Ring systems containing bridged rings containing three rings
  • C07C2603/70—Ring systems containing bridged rings containing three rings containing only six-membered rings
  • C07C2603/74—Adamantanes
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  • C07—ORGANIC CHEMISTRY
  • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
  • C07C2603/00—Systems containing at least three condensed rings
  • C07C2603/56—Ring systems containing bridged rings
  • C07C2603/86—Ring systems containing bridged rings containing four rings
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
  • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
  • Y02P20/00—Technologies relating to chemical industry
  • Y02P20/50—Improvements relating to the production of bulk chemicals
  • Y02P20/55—Design of synthesis routes, e.g. reducing the use of auxiliary or protecting groups

Definitions

• the present invention relates to vinyl ether compounds that are useful as raw materials for pharmaceutical drugs, agricultural chemicals, and polymers, as well as to processes for producing such vinyl ether compounds.
• Vinyl ether compounds are useful as raw materials for pharmaceutical drugs, agricultural chemicals, and other fine chemicals and as raw materials for polymers such as resist resins, optical plastics, transparent resins, and crosslinking resins.
• vinyl ether compounds each having an alicyclic skeleton, a lactone skeleton, or another non-aromatic cyclic skeleton are promising material monomers for resist resins, since they can improve transparency and resistance to dry etching when they are used as comonomers of such polymers.
• Vinyl ether compounds each having plural vinyl groups are suitable as material monomers for crosslinking resins, since they can impart high solvent resistance to the resulting polymers.
• such vinyl ether compounds develop odor and irritate the skin less than acrylic compounds and are excellent in handleability and workability.
• there are less types of vinyl ether compounds at higher cost than acrylic compounds (monomers) on the market which do not sufficiently fill the needs for such vinyl ether compounds.
• the vinyl ether compounds have been prepared, for example, by a process in which acetylene is allowed to react with an alcohol by catalysis of an alkali metal hydroxide or an alkali metal alcoholate.
• this process is disadvantageous in that it uses acetylene that is difficult to handle.
• U.S. Pat. No. 2,579,411 discloses a process for producing a vinyl ether compound, in which an alcohol is allowed to react with a vinyl ester in the presence of a mercury salt of a strong acid at a temperature of from ⁇ 75° C. to ⁇ 15° C.
• this process requires the use of highly toxic mercury, needs a reaction at very low temperatures, and is not suitable as a process for commercial production.
• an object of the present invention is to provide a process for easily producing a vinyl ether compound under mild conditions.
• Another object of the present invention is to provide a versatile process for producing vinyl ether compounds.
• Yet another object of the present invention is to provide a novel vinyl ether compound.
• the present invention provides, in an aspect, a process for producing vinyl ether compounds.
• the process includes the step of allowing a vinyl ester compound represented by following Formula (1):
• R 1 , R 2 , R 3 and R 4 are the same or different and are each a hydrogen atom or an organic group, to react with a hydroxy compound represented by following Formula (2): R 5 OH (2) wherein R 5 is an organic group, in the presence of at least one transition element compound to thereby yield a vinyl ether compound represented by following Formula (3):
• R 1 , R 3 , R 4 and R 5 have the same meanings as defined above.
• Such transition element compounds include, for example, iridium compounds and other compounds comprising Group VIII elements of the Periodic Table of Elements.
• the vinyl ester compound represented by Formula (1) may be allowed to react with the hydroxy compound represented by Formula (2) in the presence of a base.
• the present invention provides a vinyl ether compound represented by following Formula (4):
• ring Z is any one of cyclic groups represented by following Formulae (5) through (12):
• X 1 , X 2 , X 3 , X 4 , X 5 , X 6 , X 7 , and X 8 are each a substituent combined with an atom constituting each ring and are each a halogen atom, an alkyl group, a haloalkyl group, an aryl group, a hydroxyl group which may be protected by a protecting group, a hydroxymethyl group which may be protected by a protecting group, an amino group which may be protected by a protecting group, a carboxyl group which may be protected by a protecting group, a sulfo group which may be protected by a protecting group, an oxo group, a nitro group, a cyano group, or an acyl group which may be protected by a protecting group, wherein, when there are two or more substituents X 1 s, these X 1 s may be combined to form a ring containing four or more members with a carbon atom constituting the cyclo
• a, b, c, d, e, f, g, and h are each an integer of 0 or more, wherein, when a, b, c, d, e, f, g or h is 2 or more, the substituents in the parentheses may be the same or different;
• p, q, and r are each an integer of from 0 to 3;
• W is a divalent hydrocarbon group
• R 2 , R 3 , and R 4 are the same or different and are each a hydrogen atom or an organic group
• n 0 or 1
• n 1 to 8
• groups in the parentheses may be the same or different when m is 2 or more;
• c is 1 or more when p is 0 or 1
• X 3 is a group other than hydroxyl group when p is 0 and c is 1 in Formula (7).
• the process of the present invention can easily produce vinyl ether compounds under mild conditions. In addition, it is versatile and can efficiently produce a broad range of vinyl ether compounds.
• the present invention also provides novel vinyl ether compounds.
• the “vinyl ether compounds” and “vinyl ester compounds” as used herein also include compounds in which a hydrogen atom of a vinyl group is substituted with a substituent.
• the “transition elements” include Group IIIA elements, Group IVA elements, Group VA elements, Group VIA elements, Group VIIA elements, Group VIII elements, and Group IB elements of the Periodic Table of Elements.
• the term “organic group” as used herein is used in a wide meaning and includes not only carbon-atom-containing groups but also halogen atoms, nitro group, sulfonic acid group, and other groups containing non-metallic atoms.
• transition element compounds are used as a catalyst.
• Such transition elements include lanthanum, cerium, and other Group IIIA elements (in particular, lanthanoid elements); titanium, zirconium, and other Group IVA elements; vanadium and other Group VA elements; chromium, molybdenum, tungsten, and other Group VIA elements; manganese and other Group VIIA elements; iron, cobalt, nickel, ruthenium, rhodium, palladium, osmium, iridium, platinum, and other Group VIII elements; and copper, silver, and other Group IB elements.
• Group VIII elements are preferred, of which platinum group elements including ruthenium, rhodium, palladium, osmium, iridium, and platinum are typically preferred. In particular, iridium is specifically preferred.
• Transition element compounds include, but are not limited to, elementary substances (metals), oxides, sulfides, hydroxides, halides (fluorides, chlorides, bromides, and iodides), and sulfates of transition elements, oxoacids or salts thereof, and inorganic complexes containing transition elements, and other inorganic compounds; cyanides, salts of organic acids (e.g., acetates), organic complexes, and other organic compounds of transition elements. Among them, organic complexes are typically preferred. Ligands constituting such complexes include known ligands.
• the transition elements in the transition element compounds each have a valency of from about 0 to about 6, and preferably from about 0 to about 3.
• iridium in the iridium compounds preferably has a valency of 1 or 3.
• transition element compounds include, by taking iridium compounds as an example, metal iridium, iridium oxide, iridium sulfide, iridium hydroxide, iridium fluoride, iridium chloride, iridium bromide, iridium iodide, iridium sulfate, iridic acid and salts thereof (e.g., potassium iridate), inorganic iridium complexes [e.g., hexaammineiridlum(III) salts, and chloropentaammineiridium(III) salts], and other inorganic compounds; iridium cyanide, organic iridium complexes, and other organic compounds.
• iridium compounds as an example, metal iridium, iridium oxide, iridium sulfide, iridium hydroxide, iridium fluoride, iridium chloride, iridium bromide, iridium
• Such organic complexes include, but are not limited to, tris(acetylacetonato)iridium, dodecacarbonyltetrairidium(0), chlorotricarbonyliridium(I), di- ⁇ -chlorotetrakis(cyclooctene)diiridium(I), di- ⁇ -chlorotetrakis(ethylene)diiridium(I), di- ⁇ -chlorobis(1,5-cyclooctadiene)diiridium(I), di- ⁇ -chlorodichlorobis(pentamethylcyclopentadienyl)diiridium(III), trichlorotris(triethylphosphine)iridium(III), pentahydridobis(trimethylphosphine)iridium(V), chlorocarbonylbis(triphenylphosphine)iridium(I), chloroethylenebis(triphenylphosphine)iridium
• Preferred iridium compounds include iridium complexes, of which organic iridium complexes are typically preferred. Among them, organic iridium complexes each having a specific ligand are especially preferred.
• specific ligands include, for example, cyclopentene, dicyclopentadiene, cyclooctene, 1,5-cyclooctadiene, ethylene, pentamethylcyclopentadiene, benzene, toluene, and other unsaturated hydrocarbons; acetonitrile and other nitrites; and tetrahydrofuran and other ethers.
• Examples of such preferred organic iridium complexes are di- ⁇ -chlorotetrakis(cyclooctene)diiridium(I), di- ⁇ -chlorotetrakis(ethylene)diiridium(I), di- ⁇ -chlorobis(1,5-cyclooctadiene)diiridium(I), bis(1,5-cyclooctadiene)iridium tetrafluoroborate, and (1,5-cyclooctadiene)(acetonitrile)iridium tetrafluoroborate.
• Each of these iridium compounds can be used alone or in combination with each other and can be used in combination with the other transition element compounds.
• the other transition element compounds than the iridium compounds include compounds corresponding to the iridium compounds, such as dichloro(1,5-cyclooctadiene)ruthenium, dichloro(1,5-cyclooctadiene)platinum, and dichlorobis(1,5-cyclooctadiene)dirhodium.
• organic complexes each containing a specific ligand such as cyclopentene, dicyclopentadiene, cyclooctene, 1,5-cyclooctadiene, ethylene, pentamethylcyclopentadiene, benzene, toluene, and other unsaturated hydrocarbons; acetonitrile and other nitrites; and tetrahydrofuran and other ethers.
• a specific ligand such as cyclopentene, dicyclopentadiene, cyclooctene, 1,5-cyclooctadiene, ethylene, pentamethylcyclopentadiene, benzene, toluene, and other unsaturated hydrocarbons; acetonitrile and other nitrites; and tetrahydrofuran and other ethers.
• the transition element compound can be used as intact or being supported by a carrier (support).
• a carrier include conventional carriers for supporting catalysts, such as silica, alumina, silica-alumina, zeolite, titania, magnesia, and other metal oxides, as well as activated carbon.
• the amount of the transition element compound is, for example, from about 0.1% to 50% by weight, and preferably from about 1% to about 20% by weight relative to the weight of the carrier.
• the catalyst transition element compound can be supported by the carrier according to a conventional procedure such as impregnation, precipitation, and ion exchange.
• the amount of the transition element compound is, for example, from about 0.0001 to about 1 mole, preferably from about 0.001 to about 0.3 mole, and more preferably from about 0.005 to about 0.1 mole per mole of the hydroxy compound used as a reaction component.
• the substituents R 1 , R 2 , R 3 , and R 4 are each a hydrogen atom or an organic group.
• the organic group herein may be any organic group that does not adversely affect the reaction, such as an organic group that is not reactive under reaction conditions in the process of the present invention.
• Such organic groups include, but are not limited to, halogen atoms such as fluorine, chlorine, bromine and iodine atoms, hydrocarbon groups, heterocyclic groups, substituted oxycarbonyl groups (e.g., alkoxycarbonyl groups, aryloxycarbonyl groups, aralkyloxycarbonyl groups, and cycloalkyloxycarbonyl groups), carboxyl group, substituted or unsubstituted carbamoyl groups, cyano group, nitro group, sulfur acid groups, sulfur acid ester groups, acyl groups (e.g., acetyl group and other aliphatic acyl groups; and benzoyl group and other aromatic acyl groups), alkoxy groups (e.g., methoxy, ethoxy, and other C 1 –C 6 alkoxy groups), and N,N-di-substituted amino groups (e.g., N,N-dimethylamino group, and piperidino group),
• the hydrocarbon groups and heterocyclic groups also include hydrocarbon groups and heterocyclic groups each having at least one substituent.
• the hydrocarbon groups include aliphatic hydrocarbon groups, alicyclic hydrocarbon groups, aromatic hydrocarbon groups, and groups comprising these groups combined with each other.
• the aliphatic hydrocarbon groups include, but are not limited to, methyl, ethyl, propyl, isopropyl, butyl, isobutyl, s-butyl, t-butyl, pentyl, hexyl, decyl, dodecyl, and other alkyl groups each containing from about 1 to about 20, preferably from about 1 to about 10, and more preferably from about 1 to about 3 carbon atoms; vinyl, allyl, 1-butenyl, and other alkenyl groups each containing from about 2 to about 20, preferably from about 2 to about 10, and more preferably 2 or 3 carbon atoms; ethynyl, propynyl, and other alkynyl groups each containing from about 2 to about 20, preferably from about 2 to about 10, and more preferably 2 or 3 carbon atoms.
• the alicyclic hydrocarbon groups include, but are not limited to, cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, cyclooctyl, and other cycloalkyl groups each containing from about 3 to about 20, preferably from about 3 to 15, and more preferably from about 5 to about 8 members; cyclopentenyl, cyclohexenyl, and other cycloalkenyl groups each containing from about 3 to about 20, preferably from about 3 to about 15, and more preferably from about 5 to about 8 members; perhydronaphthalen-1-yl group, norbornyl, adamantyl, tetracyclo[4.4.0.1 2,5 .1 7,10 ]dodec-3-yl group, and other bridged hydrocarbon groups.
• the aromatic hydrocarbon groups include, but are not limited to, phenyl, naphthyl, and other aromatic hydrocarbon groups each containing form about 6 to about 14, and preferably from about 6
• Hydrocarbon groups each comprising an aliphatic hydrocarbon group and an alicyclic hydrocarbon group combined with each other include, for example, cyclopentylmethyl, cyclohexylmethyl, 2-cyclohexylethyl, and other cycloalkyl-alkyl groups (e.g., C 3 –C 20 cycloalkyl-C 1 –C 4 alkyl groups).
• Hydrocarbon groups each comprising an aliphatic hydrocarbon group and an aromatic hydrocarbon group combined with each other include, for example, aralkyl groups such as C 7 –C 18 aralkyl groups; and alkyl-substituted aryl groups such as phenyl or naphthyl group on which about one to about four C 1 –C 4 alkyl groups are substituted.
• Preferred hydrocarbon groups include C 1 –C 10 alkyl groups, C 2 –C 10 alkenyl groups, C 2 –C 10 alkynyl groups, C 3 –C 15 cycloalkyl groups, C 6 –C 10 aromatic hydrocarbon groups, C 3 –C 15 cycloalkyl-C 1 –C 4 alkyl groups, and C 7 –C 14 aralkyl groups.
• the hydrocarbon groups may each have at least one substituent.
• substituents include, but are not limited to, halogen atoms, oxo group, hydroxyl group, substituted oxy groups (e.g., alkoxy groups, aryloxy groups, aralkyloxy groups, and acyloxy groups), carboxyl group, substituted oxycarbonyl groups (e.g., alkoxycarbonyl groups, aryloxycarbonyl groups, and aralkyloxycarbonyl groups), substituted or unsubstituted carbamoyl groups, cyano group, nitro group, substituted or unsubstituted amino groups, sulfo group, and heterocyclic groups.
• the hydroxyl group and carboxyl group just mentioned above may be protected by a protecting group conventionally used in the field of organic synthesis.
• the alicyclic hydrocarbon groups and aromatic hydrocarbon groups may have aromatic or non-aromatic heterocyclic rings fused to their rings.
• Heterocyclic rings constituting the heterocyclic groups in R 1 and the other substituents include aromatic heterocyclic rings and non-aromatic heterocyclic rings.
• Such heterocyclic rings include, but are not limited to, heterocyclic rings each containing at least one oxygen atom as a hetero atom (e.g., furan, tetrahydrofuran, oxazole, isoxazole, ⁇ -butyrolactone, and other 5-membered rings; 4-oxo-4H-pyran, tetrahydropyran, morpholine, and other 6-membered rings; benzofuran, isobenzofuran, 4-oxo-4H-chromene, chroman, isochroman, and other fused rings; 3-oxatricyclo[4.3.1.1 4,8 ]undecan-2-one ring, 3-oxatricyclo[4.2.1.0 4,8 ]nonan-2-one ring, and other bridged rings); heterocyclic rings each containing at least one
• the heterocyclic groups may each have at least one substituent.
• substituents include, for example, alkyl groups (e.g., methyl, ethyl, and other C 1 –C 4 alkyl groups), cycloalkyl groups, aryl groups (e.g., phenyl and naphthyl groups), as well as the substituents which the hydrocarbon groups may have.
• Preferred substituents R 1 , R 2 , R 3 and R 4 include hydrogen atoms and hydrocarbon groups such as C 1 –C 10 alkyl groups, C 2 –C 10 alkenyl groups, C 2 –C 10 alkynyl groups, C 3 –C 15 cycloalkyl groups, C 6 –C 10 aromatic hydrocarbon groups, C 3 –C 12 cycloalkyl-C 1 –C 4 alkyl groups, and C 7 –C 14 aralkyl groups.
• methyl group and other C 1 –C 3 alkyl groups and phenyl group are typically preferred as R 1
• hydrogen atom, methyl group and other C 1 –C 3 alkyl groups are typically preferred as R 2 , R 3 , and R 4 R.
• Typical examples of the vinyl ester compounds represented by Formula (1) include vinyl acetate, isopropenyl acetate, 1-propenyl acetate, 2-methyl-1-propenyl acetate, 1,2-dimethyl-1-propenyl acetate, vinyl formate, vinyl propionate, and vinyl benzoate.
• the organic group in R 5 can be any of organic groups as long as they do not adversely affect the reaction, such as organic groups that are not reactive under reaction conditions in the process of the present invention.
• organic groups include, for example, organic groups similar to those exemplified in the substituents R 1 , R 2 , R 3 and R 4 .
• Typical examples of the organic groups are hydrocarbon groups and heterocyclic groups. Such hydrocarbon groups and heterocyclic groups include those exemplified in the substituents R 1 , R 2 , R 3 and R 4 .
• the hydrocarbon groups and heterocyclic groups also include hydrocarbon groups and heterocyclic groups each having at least one substituent, as well as those each having a ring fused thereto.
• substituents are not specifically limited, as long as they do not adversely affect the reaction, and include the substituents which the hydrocarbon groups and heterocyclic groups in R 1 , R 2 , R 3 and R 4 may have.
• the hydroxy compounds include, for example, primary alcohols, secondary alcohols, tertiary alcohols, and phenols.
• the hydroxy compounds may each have plural hydroxyl groups and may be whichever of monohydric alcohols, dihydric alcohols, polyhydric alcohols, monohydric phenols, dihydric phenols, and polyhydric-phenols.
• Typical primary alcohols include, but are not limited to, methanol, ethanol, 1-propanol, 1-butanol, 2-methyl-1-propanol, 1-pentanol, 1-hexanol, 1-octanol, 1-decanol, 1-hexadecanol, 2-buten-1-ol, ethylene glycol, trimethylene glycol, glycerol, hexamethylene glycol, pentaerythritol, and other saturated or unsaturated aliphatic primary alcohols each containing from about 1 to about 30, preferably from about 1 to about 20, and more preferably from about 1 to about 15 carbon atoms; cyclopentylmethyl alcohol, cyclohexylmethyl alcohol, 2-cyclohexylethyl alcohol, and other saturated or unsaturated alicyclic primary alcohols; benzyl alcohol, 1,2-(1,3-or 1,4-)bis(hydroxymethyl)benzene, 1,2,3-(1,2,4-or 1,3,5-)tri
• Primary alcohols each having at least one substituent on its hydrocarbon moiety include, but are not limited to, methyl glycolate, ethyl glycolate, and other glycolic esters; ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, and other alkylene glycol monoalkyl ethers; ethylene glycol monoacetate, and other alkylene glycol monoesters.
• Typical secondary alcohols include, but are not limited to, 2-propanol, s-butyl alcohol, 2-pentanol, 3-pentanol, 3,3-dimethyl-2-butanol, 2-octanol, 4-decanol, 2-hexadecanol, 2-penten-4-ol, glycerol, 1,2-propanediol, 2,3-butanediol, 2,3-pentanediol, and other vicinal diols, and other saturated or unsaturated aliphatic secondary alcohols each containing from about 3 to about 30, preferably from about 3 to about 20, and more preferably from about 3 to about 15 carbon atoms; 1-cyclopentylethanol, 1-cyclohexylethanol, and other secondary alcohols each having an aliphatic hydrocarbon group and an alicyclic hydrocarbon (e.g., a cycloalkyl group) combined with a carbon atom that is combined with a hydroxyl group;
• Typical tertiary alcohols include, but are not limited to, t-butyl alcohol, t-amyl alcohol, and other substituted or unsubstituted aliphatic tertiary alcohols each containing from about 4 to about 30, preferably from about 4 to about 20, and more preferably from about 4 to about 15 carbon atoms; 1-cyclohexyl-1-methylethanol, and other secondary alcohols each containing an aliphatic hydrocarbon group and an alicyclic hydrocarbon group (e.g., a cycloalkyl group and a bridged hydrocarbon group) combined with a carbon atom with which a hydroxyl group is combined; 1-methyl-1-cyclohexanol, and other tertiary alcohols each containing a hydroxyl group and an aliphatic hydrocarbon group combined with one carbon atom constituting an alicyclic ring (e.g., a cycloalkane ring, and a bridged carbon ring); 1-adamantanol,
• Typical phenols include, but are not limited to, phenol, cresol, hydroquinone, resorcinol, catechol, 1-hydroxynaphthalene, and other compounds each containing a hydroxyl group combined with an aromatic carbon ring; 2-hydroxypyridine, 3-hydroxypyridine, 4-hydroxypyridine, 3-hydroxyfuran,-3-hydroxythiophene, and other compounds each containing a hydroxyl group combined with an aromatic heterocyclic ring. These hydroxy compounds may each have at least one substituent within a range not deteriorating the reaction.
• preferred hydroxy compounds also include compounds represented by following Formula (13):
• ring Z is any one of cyclic groups represented by following Formulae (5) through (12):
• X 1 , X 2 , X 3 , X 4 , X 5 , X 6 , X 7 , and X 8 are each a substituent combined with an atom constituting each ring and are each a halogen atom, an alkyl group, a haloalkyl group, an aryl group, a hydroxyl group which may be protected by a protecting group, a hydroxymethyl group which may be protected by a protecting group, an amino group which may be protected by a protecting group, a carboxyl group which may be protected by a protecting group, a sulfo group which may be protected by a protecting group, an oxo group, a nitro group, a cyano group, or an acyl group which may be protected by a protecting group, wherein, when there are two or more substituents X 1 s, these X 1 s may be combined to form a ring containing four or more members with a carbon atom constituting the cyclo
• a, b, C, d, e, f, g, and h are each an integer of 0 or more, wherein substituents in the parentheses may be the same or different when a, b, c, d, e, f, g or h is 2 or more; and
• p, q, and r are each an integer of from 0 to 3;
• W is a divalent hydrocarbon group
• n 0 or 1
• n is an integer from 1 to 8;
• groups in the parentheses may be the same or different when m is 2 or more;
• c is 1 or more when p is 0 or 1, and X 3 is a group other than hydroxyl group when p is 0 and c is 1.
• the groups X 1 , X 2 , X 3 , X 4 , X 5 , X 6 , X 7 , and X 8 are each a substituent combined with an atom constituting each ring.
• the ring just mentioned above means a ring indicated in the formulae, such as cyclohexane ring, adamantane ring, norbornane ring, tetracyclo[4.4.0.1 2,5 1 7,10 ]dodecane ring, 4-oxatricyclo[5.2.1.0 2,6 ]decane-3,5-dione ring, ⁇ -butyrolactone ring, 4-oxatricyclo[5.2.1.0 2,6 ]decan-3-one ring, 3-oxatricyclo[4.2.1.0 4,8 ]nonan-2-one ring, and 3-oxatricyclo[4.3.1.1 4,8 ]undecan-2-one ring.
• the halogen atom in X 1 and the other substituents includes, for example, fluorine, chlorine, and bromine atoms.
• the alkyl group in X 1 and the other substituents includes, but is not limited to, methyl, ethyl, propyl, isopropyl, butyl, isobutyl, s-butyl, t-butyl, hexyl, octyl, decyl, and other C 1 –C 10 alkyl groups, of which C 1 –C 5 alkyl groups are preferred.
• the haloalkyl group in X 1 and the other substituents includes, but is not limited to, chloromethyl, trifluoromethyl, trifluoroethyl, pentafluoroethyl, and other C 1 –C 10 haloalkyl groups, of which C 1 –C 5 haloalkyl groups are preferred.
• the aryl group in X 1 and the other substituents includes, but is not limited to, phenyl, and naphthyl groups. The aromatic rings of these aryl groups may each have at least one substituent.
• substituents include, for example, fluorine atom, and other halogen atoms; methyl group, and other C 1 –C 4 alkyl groups; trifluoromethyl group, and other C 1 –C 5 haloalkyl groups; hydroxyl group; methoxy group, and other C 1 –C 4 alkoxy groups; amino group; dialkylamino groups; carboxyl group; methoxycarbonyl group, and other alkoxycarbonyl groups; nitro group; cyano group; acetyl group, and other acyl groups.
• Hydroxyl-and hydroxymethyl-protecting groups in X 1 and the other substituents include protecting groups conventionally used in the field of organic synthesis.
• protecting groups include, but are not limited to, alkyl groups (e.g., methyl, t-butyl, and other C 1 –C 4 alkyl groups), alkenyl groups (e.g., allyl group), cycloalkyl groups (e.g., cyclohexyl group), aryl groups (e.g., 2,4-dinitrophenyl group), aralkyl groups (e.g., benzyl group); substituted methyl groups (e.g., methoxymethyl, methylthiomethyl, benzyloxymethyl, t-butoxymethyl, and 2-methoxyethoxymethyl groups), substituted ethyl groups (e.g., 1-ethoxyethyl group), tetrahydropyranyl group, tetrahydrofuranyl group, 1-hydroxyal
• the protecting groups also include, for example, divalent hydrocarbon groups (e.g., methylene, ethylidene, isopropylidene, cyclopentylidene, cyclohexylidene, and benzylidene groups) each of which may have at least one substituent.
• divalent hydrocarbon groups e.g., methylene, ethylidene, isopropylidene, cyclopentylidene, cyclohexylidene, and benzylidene groups
• Amino-protecting groups in X 1 and the other substituents include, for example, the alkyl groups, aralkyl groups, acyl groups, and alkoxycarbonyl groups exemplified as the hydroxyl-protecting groups.
• Carboxy-protecting and sulfo-protecting groups in X 1 and the other substituents include, but are not limited to, alkoxy groups (e.g., methoxy, ethoxy, butoxy, and other C 1 –C 6 alkoxy groups), cycloalkyloxy groups, aryloxy groups, aralkyloxy groups, trialkylsilyloxy groups, amino groups which may have at least one substituent, hydrazino group, alkoxycarbonylhydrazino groups, and aralkylcarbonylhydrazino groups.
• alkoxy groups e.g., methoxy, ethoxy, butoxy, and other C 1 –C 6 alkoxy groups
• cycloalkyloxy groups e.g., aryloxy groups, aralkyloxy groups, trialkylsilyloxy groups
• amino groups which may have at least one substituent hydrazino group, alkoxycarbonylhydrazino groups, and a
• the acyl group in X 1 and the other substituents includes, but is not limited to, formyl, acetyl, propionyl, butyryl, isobutyryl, pivaloyl, and other C 1 –C 6 aliphatic acyl groups; acetoacetyl group; benzoyl, and other aromatic acyl groups.
• Acyl-protecting groups for use herein include protecting groups conventionally used in the field of organic synthesis. Such protected acyl groups include, for example, acetals inclusive of hemiacetals.
• X 1 s When the cyclohexane ring in Formula (5) has two or more X 1 s, these X 1 s may be combined to form a ring having four or more members with a carbon atom constituting the cyclohexane ring.
• Such rings include, but are not limited to, cyclopentane ring, cyclohexane ring, perhydronaphthalene ring (decalin ring), and other alicyclic carbon rings; ⁇ -butyrolactone ring, ⁇ -valerolactone ring, and other lactone rings.
• the repetition numbers a, b, c, d, e, f, g, and h are each an integer of, for example, from 0 to 5, and preferably from 0 to 3.
• W is a divalent hydrocarbon group.
• divalent hydrocarbon groups include divalent aliphatic hydrocarbon groups, divalent alicyclic hydrocarbon groups, divalent aromatic hydrocarbon groups, and hydrocarbon groups each comprising two or more of these groups combined with each other. These hydrocarbon groups may each have one or more monovalent hydrocarbon groups combined therewith.
• monovalent, hydrocarbon groups include aliphatic hydrocarbon groups, alicyclic hydrocarbon groups, aromatic hydrocarbon groups, and hydrocarbon groups each comprising two or more of these groups combined with each other.
• the divalent hydrocarbon groups also include hydrocarbon groups each having at least one substituent. Such substituents include those exemplified in X 1 and the other substituents in ring Z.
• Typical divalent hydrocarbon groups include, but are not limited to, methylene, methylmethylene, ethylmethylene, dimethylmethylene, ethylmethylmethylene, ethylene, trimethylene, tetramethylene, and other alkylene groups; propenylene, and other alkenylene groups; 1,3-cyclopentylene, 1,2-cyclohexylene, 1,3-cyclohexylene, 1,4-cyclohexylene, and other cycloalkylene groups; cyclopropylidene, cyclopentylidene, cyclohexylidene, and other cycloalkylidene groups; phenylene, and other arylene groups; and benzylidene group.
• W include groups represented by following Formula (14):
• R 6 and R 7 are the same or different and are each a hydrogen atom or a hydrocarbon group, and wherein R 6 and R 7 may be combined to form an alicyclic ring with the adjacent carbon atom.
• Such hydrocarbon groups in R 6 and R 7 include hydrocarbon groups similar to those exemplified in R 1 and the other substituents.
• the hydrocarbon groups also include hydrocarbon groups each having at least one substituent.
• Such substituents include substituents similar to those which the hydrocarbon groups in R 1 and the other substituents may have, as well as substituents similar to X 1 and the other substituents in ring Z.
• R 6 and R 7 include hydrogen atom; methyl, ethyl, propyl, isopropyl, butyl, and other C 1 –C 10 alkyl groups, of which C 1 –C 5 alkyl groups are typically preferred; cyclopentyl, cyclohexyl, and other substituted or unsubstituted cycloalkyl groups; norborn-2-yl, adamant-1-yl, and other substituted or unsubstituted bridged groups.
• substituents which the cycloalkyl groups and the bridged groups may have include substituents similar to X 1 and the other substituents in ring Z, such as halogen atoms, alkyl groups, haloalkyl groups, aryl groups, hydroxyl group which may be protected by a protecting group, hydroxymethyl group which may be protected by a protecting group, amino group which may be protected by a protecting group, carboxyl group which may be protected by a protecting group, sulfo group which may be protected by a protecting group, oxo group, nitro group, cyano group, and acyl groups which may be protected by a protecting group.
• substituents similar to X 1 and the other substituents in ring Z such as halogen atoms, alkyl groups, haloalkyl groups, aryl groups, hydroxyl group which may be protected by a protecting group, hydroxymethyl group which may be protected by a protecting group, amino group which may be protected by a protecting group, carb
• the repetition number m is an integer of preferably from 1 to 4, and more preferably from 1 to 3.
• Typical examples of the hydroxy compounds represented by Formula (13) include the following compounds.
• the hydroxy compounds in which ring Z is a group represented by Formula (5) include, for example, cis-3,3,5-trimethyl-1-cyclohexanol, trans-3,3,5-trimethyl-1-cyclohexanol, 2-isopropyl-5-methyl-1-cyclohexanol (menthol), and 2-hydroxy-7-oxabicyclo[3.2.1]octan-6-one.
• ring Z is a group represented by Formula (5)
• the hydroxy compounds in which ring Z is a group represented by Formula (6) include, for example, 2-methyl-2-adamantanol, 2-ethyl-2-adamantanol, 1,3-adamantanediol, 1,3,5-adamantanetriol, 1,3,5,7-adamantanetetraol, 3,5-dimethyl-1-adamantanol, 5,7-dimethyl-1,3-adamantanediol, 3-carboxy-1-adamantanol, 3-amino-1-adamantanol, 3-nitro-1-adamantanol, 3-sulfo-1-adamantanol, 3-t-butyloxycarbonyl-1-adamantanol, 4-oxo-1-adamantanol, 3-hydroxy- ⁇ , ⁇ -dimethyl-1-adamantanemethanol, 1-adamantanemethanol, ⁇ , ⁇ -dimethyl-1-adamantanemethanol, ⁇ -ethy
• the hydroxy compounds in which ring Z is a group represented by Formula (7) include, for example, 2,5-norbornanediol, 2,3-norbornanediol, 5-methoxycarbonyl-2-hydroxynorbornane, ⁇ -methyl- ⁇ -(norborn-2-yl)-2-norbornanemethanol, 2-norbornanemethanol, ⁇ , ⁇ -dimethyl-2-norbornanemethanol, ⁇ -butyl- ⁇ -methyl-2-norbornanemethanol, 3,4-dihydroxytetracyclo[4.4.0.1 2,5 1. 7,10 ]dodecane, 3,8-dihydroxytetracyclo[4.4.0.1 2,5 1.
• hydroxy compounds in which ring Z is a group represented by Formula (8) include, for example, 8-hydroxy-4-oxatricyclo[5.2.1.0 2,6 ]decane-3,5-dione, and 4-hydroxy-11-oxapentacyclo[6.5.1.1 3,6 .0 2,7 .0 9,13 ]pentadecane-10,12-dione.
• the hydroxy compounds in which ring Z is a group represented by Formula (9) include, for example, ⁇ -hydroxy- ⁇ , ⁇ -dimethyl- ⁇ -butyrolactone, ⁇ -hydroxy- ⁇ , ⁇ , ⁇ -trimethyl- ⁇ -butyrolactone, ⁇ -hydroxy- ⁇ , ⁇ -dimethyl- ⁇ -methoxycarbonyl- ⁇ -butyrolactone, 8-hydroxy-4-oxatricyclo[5.2.1.0 2,6 ]decan-3-one, 9-hydroxy-4-oxatricyclo[5.2.1.0 2,6 ]decan-3-one, and 8,9-dihydroxy-4-oxatricyclo[5.2.1.0 2,6 ]decan-3-one.
• hydroxy compounds in which ring Z is a group represented by Formula (10) include, for example, 4-hydroxy-2,7-dioxabicyclo[3.3.0]octane-3,6-dione.
• the hydroxy compounds in which ring Z is a group represented by Formula (11) include, for example, 5-hydroxy-3-oxatricyclo[4.2.1.0 4,8 ]nonan-2-one, 5-hydroxy-5-methyl-3-oxatricyclo[4.2.1.0 4,8 ]nonan-2-one, and 5-hydroxy-9-methyl-3-oxatricyclo[4.2.1.0 4,8 ]nonan-2-one.
• hydroxy compounds in which ring Z is a group represented by Formula (12) include, for example, 6-hydroxy-3-oxatricyclo[4.3.1.1 4,8 ]undecan-2-one, and 6,8-dihydroxy-3-oxatricyclo[4.3.1.1 4,8 ]undecan-2-one.
• the reaction between the vinyl ester compound represented by Formula (1) and the hydroxy compound represented by Formula (2) is performed in the presence of, or in the absence of, a solvent.
• solvents include, but are not limited to, hexane, heptane, octane, and other aliphatic hydrocarbons; cyclohexane, and other alicyclic hydrocarbons; benzene, toluene, xylene, ethylbenzene, and other aromatic hydrocarbons; chloroform, dichloromethane, 1,2-dichloroethane, and other halogenated hydrocarbons; diethyl ether, dimethoxyethane, tetrahydrofuran, dioxane, and other ethers; acetone, methyl ethyl ketone, and other ketones; methyl acetate, ethyl acetate, isopropyl acetate, butyl acetate, and other esters; N,N
• the amount of the vinyl ester compound represented by Formula (1) is, for example, from about 0.8 to about 10 equivalents, preferably from about 1 to about 8 equivalents, and more preferably from about 1.5 to about 5 equivalents per equivalent of the hydroxy compound represented by Formula (2). It is also acceptable that the vinyl ester compound represented by Formula (1) is used in large excess.
• Such bases include inorganic bases and organic bases.
• Such inorganic bases include, but are not limited to, lithium hydroxide, sodium hydroxide, potassium hydroxide, cesium hydroxide, and other alkali metal hydroxides; magnesium hydroxide, calcium hydroxide, barium hydroxide, and other alkaline earth metal hydroxides; lithium carbonate, sodium carbonate, potassium carbonate, cesium carbonate, and other alkali metal carbonates; magnesium carbonate, and other alkaline earth metal carbonates; and lithium hydrogencarbonate, sodium hydrogencarbonate, potassium hydrogencarbonate, cesium hydrogencarbonate, and other alkali metal hydrogencarbonates.
• the organic bases include, but are not limited to, lithium acetate, sodium acetate, potassium acetate, cesium acetate, and other organic acid salts of alkali metals (in particular, alkali metal acetates); magnesium acetate, and other organic acid salts of alkaline earth metals; lithium methoxide, sodium methoxide, sodium ethoxide, sodium isopropoxide, potassium ethoxide, and other alkali metal alkoxides including alkali metal alkoxides corresponding to the hydroxy compounds represented by Formula (2); sodium phenoxide, and other alkali metal phenoxides; triethylamine, N-methylpiperidine, and other amines including tertiary amines; pyridine, 2,2′-bipyridyl, 1,10-phenanthroline, and other nitrogen-containing aromatic heterocyclic compounds.
• the amount of the base is, for example, from about 0.001 to about 3 moles, and preferably from about 0.005 to 2 moles per mole of the hydroxy compound represented by Formula (2).
• the reaction may be performed in the presence of a polymerization inhibitor.
• a reaction temperature can appropriately be selected depending on the types of the reaction components and the catalyst and is, for example, from about 20° C. to about 200° C., preferably from about 50° C. to about 150° C., and more preferably from about 70° C. to 120° C.
• the reaction can be performed at ordinary pressure (ambient pressure), under a reduced pressure, or under a pressure (under a load).
• the atmosphere of the reaction is not specifically limited as long as it does not adversely affect the reaction and includes, for example, an atmosphere of the air, of nitrogen gas, or of argon gas.
• the reaction can be performed in any system such as batch system, semi-batch system and continuous system.
• the process of the present invention can yield a corresponding vinyl ether compound represented by Formula (3) under mild conditions as a result of the reaction.
• the reaction product can be separated and purified, for example, by filtration, concentration, distillation, extraction, crystallization, recrystallization, column chromatography, or another separation means or any combination of these separation means.
• the process of the present invention can yield the novel vinyl ether compounds represented by Formula (4).
• the compound represented by Formula (4) can be obtained by allowing the vinyl ester compound represented by Formula (1) to react with the hydroxy compound represented by Formula (13) in the presence of a transition element compound.
• Typical examples of the vinyl ether compounds represented by Formula (4) include the following compounds.
• the vinyl ether compounds in which ring Z is a group represented by Formula (5) include, for example, cis-1,1,3-trimethyl-5-vinyloxycyclohexane, trans-1,1,3-trimethyl-5-vinyloxycyclohexane, 1-isopropyl-4-methyl-2-vinyloxycyclohexane, 2-vinyloxy-7-oxabicyclo[3.2.1]octan-6-one, and isopropenyl ethers corresponding to these compounds.
• ring Z is a group represented by Formula (5)
• the vinyl ether compounds in which ring Z is a group represented by Formula (6) include, for example, 2-methyl-2-vinyloxyadamantane, 2-ethyl-2-vinyloxyadamantane, 1,3-bis(vinyloxy)adamantane, 3-vinyloxy-1-adamantanol, 1,3,5-tris(vinyloxy)adamantane, 3,5-bis(vinyloxy)-1-adamantanol, 5-vinyloxy-1,3-adamantanediol, 1,3,5,7-tetrakis(vinyloxy)adamantane, 3,5,7-tris(vinyloxy)-1-adamantanol, 5,7-bis(vinyloxy)-1,3-adamantanediol, 7-vinyloxy-1,3,5-adamantanetriol, 1,3-dimethyl-5-vinyloxyadamantane, 1,3-dimethyl-5,7-bis
• the vinyl ether compounds in which ring Z is a group represented by Formula (7) include, for example, 2,5-bis(vinyloxy)norbornane, 2,3-bis(vinyloxy)norbornane, 5-methoxycarbonyl-2-vinyloxynorbornane, 2-(1-(norborn-2-yl)-1-vinyloxyethyl)norbornane, 2-(vinyloxymethyl)norbornane, 2-(1-methyl-1-vinyloxyethyl)norbornane, 2-(1-methyl-1-vinyloxypentyl)norbornane, 3-hydroxy-4-vinyloxytetracyclo[4.4.0.1 2,5 .1 10 ]dodecane, 3,4-bis(vinyloxy)tetracyclo[4.4.0.1 2,5 .1 7,10 ]dodecane, 3-hydroxy-8-vinyloxytetracyclo[4.4.0.1 2,5 .1 7,10 ]
• vinyl ether compounds in which ring Z is a group represented by Formula (7) preference is given to compounds in which p is 0 and c is an integer of from 2 to 4, to compounds in which p is 0 and n is 1, to compounds in which p is 1 and c is an integer of from 1 to 4, and to compounds in which p is 0, c is 1 and X 3 is a group other than hydroxyl group.
• the vinyl ether compounds in which ring Z is a group represented by Formula (8) include, for example, 8-vinyloxy-4-oxatricyclo[5.2.1.0 2,6 ]decane-3,5-dione, 4-vinyloxy-11-oxapentacyclo[6.5.1.1 3,6 .0 2,7 .0 9,13 ]pentadecane-10,12-dione, and isopropenyl ethers corresponding to these compounds.
• the vinyl ether compounds in which ring Z is a group represented by Formula (9) include, for example, ⁇ -vinyloxy- ⁇ , ⁇ -dimethyl- ⁇ -butyrolactone, ⁇ , ⁇ , ⁇ -trimethyl- ⁇ -vinyloxy- ⁇ -butyrolactone, ⁇ , ⁇ -dimethyl- ⁇ -methoxycarbonyl- ⁇ -vinyloxy- ⁇ -butyrolactone, 8-vinyloxy-4-oxatricyclo[5.2.1.0 2,6 ]decan-3-one, 9-vinyloxy-4-oxatricyclo[5.2.1.0 2,6 ]decan-3-one, 8,9-bis(vinyloxy)-4-oxatricyclo[5.2.1.0 2,6 ]decan-3-one, and isopropenyl ethers corresponding to these compounds.
• the vinyl ether compounds in which ring Z is a group represented by Formula (10) include, for example, 4-vinyloxy-2,7-dioxabicyclo[3.3.0]octane-3,6-dione, and isopropenyl ethers corresponding to this compound.
• the vinyl ether compounds in which ring Z is a group represented by Formula (11) include, for example, 5-vinyloxy-3-oxatricyclo[4.2.1.0 4,8 ]nonan-2-one, 5-methyl-5-vinyloxy-3-oxatricyclo[4.2.1.0 4,8 ]nonan-2-one, 9-methyl-5-vinyloxy-3-oxatricyclo[4.2.1.0 4,8 ]nonan-2-one, and isopropenyl ethers corresponding to these compounds.
• the vinyl ether compounds in which ring Z is a group represented by Formula (12) include, for example, 6-vinyloxy-3-oxatricyclo[4.2.1.0 4,8 ]undecan-2-one, 6,8-bis(vinyloxy)-3-oxatricyclo[4.2.1.0 4,8 ]undecan-2-one, 6-hydroxy-8-vinyloxy-3-oxatricyclo[4.2.1.0 4,8 ]undecan-2-one, 8-hydroxy-6-vinyloxy-3-oxatricyclo[4.2.1.0 4,8 ]undecan-2-one, and isopropenyl ethers corresponding to these compounds.
• the vinyl ether compounds represented by Formula (4) of the present invention can be used as raw materials for pharmaceutical drugs, agricultural chemicals, and other fine chemicals, as well as raw materials for polymers such as resist resins, optical plastics, transparent resins, and crosslinking resins.
• they each have a non-aromatic cyclic skeleton such as an alicyclic skeleton or a lactone skeleton and are useful as material monomers for resist resins, since they can improve transparency and resistance to dry etching when they are used as comonomers of such polymers.
• the reaction mixture was analyzed by gas chromatography to find that 1,6-bis(vinyloxy)hexane and 6-vinyloxy-1-hexanol were produced in yields of 87% and 2%, respectively, with a conversion from 1,6-hexanediol of 97%.
• the reaction mixture was analyzed by gas chromatography to find that 1-adamantyl vinyl ether and 1-(adamant-1-yloxy) ethyl acetate were produced in yields of 91% and 1%, respectively, with a conversion from 1-adamantanol of 93%.
• reaction mixture was analyzed by gas chromatography to find that cis-1,1,3-trimethyl-5-vinyloxycyclohexane was produced in a yield of 91% with a conversion from cis-3,3,5-trimethyl-1-cyclohexanol of 95%.
• the reaction mixture was analyzed by gas chromatography to find that 1,3-bis(vinyloxy)adamantane and 3-vinyloxy-1-adamantanol were produced in yields of 41% and 16%, respectively, with a conversion from 1,3-adamantanediol of 97%.
• the reaction mixture was analyzed by gas chromatography to find that 1,3,5-tris(vinyloxy)adamantane, 3,5-bis(vinyloxy)-1-adamantanol, and 5-vinyloxy-1,3-adamantanediol were produced in yields of 52%, 18%, and 8%, respectively, with a conversion from 1,3,5-adamantanetriol of 97%.
• reaction mixture was analyzed by gas chromatography to find that t-butyl 3-vinyloxyadamantane-1-carboxylate (i.e., 1-t-butyloxycarbonyl-3-vinyloxyadamantane) represented by following Formula (15) was produced in a yield of 82% with a conversion from 3-t-butyloxycarbonyl-1-adamantanol of 97%.
• t-butyl 3-vinyloxyadamantane-1-carboxylate i.e., 1-t-butyloxycarbonyl-3-vinyloxyadamantane
• the reaction mixture was analyzed by gas chromatography to find that 1-(1-methyl-1-vinyloxyethyl)adamantane represented by following Formula (18) was produced in a yield of 85% with a conversion from ⁇ , ⁇ -dimethyl-1-adamantanemethanol of 92%.
• reaction mixture was analyzed by gas chromatography to find that ⁇ , ⁇ -dimethyl- ⁇ -vinyloxy- ⁇ -butyrolactone represented by following Formula (19) was produced in a yield of 92% with a conversion from ⁇ -hydroxy- ⁇ , ⁇ -dimethyl- ⁇ -butyrolactone of 98%.
• the reaction mixture was analyzed by gas chromatography to find that 5-vinyloxy-3-oxatricyclo[4.2.1.0 4,8 ]nonan-2-one (i.e., 2-vinyloxy-4-oxatricyclo[4.2.1.0 3,7 ]nonan-5-one) represented by following Formula (20) was produced in a yield of 96% with a conversion from 5-hydroxy-3-oxatricyclo[4.2.1.0 4,8 ]nonan-2-one of 98%.
• 5-vinyloxy-3-oxatricyclo[4.2.1.0 4,8 ]nonan-2-one i.e., 2-vinyloxy-4-oxatricyclo[4.2.1.0 3,7 ]nonan-5-one
• Formula (20) was produced in a yield of 96% with a conversion from 5-hydroxy-3-oxatricyclo[4.2.1.0 4,8 ]nonan-2-one of 98%.
• the reaction mixture was analyzed by gas chromatography to find that 8,9-bis(vinyloxy)-4-oxatricyclo[5.2.1.0 2,6 ]decan-3-one represented by following Formula (21) was produced in a yield of 63% with a conversion from 8,9-dihydroxy-4-oxatricyclo[5.2.1.0 2,6 ]decan-3-one of 93%.
• the reaction mixture was analyzed by gas chromatography to find that a mixture of 3-vinyloxy-8-methoxycarbonyltetracyclo[4.4.0.1 2,5 .1 7,10 ]dodecane represented by following Formula (22) and 3-vinyloxy-9-methoxycarbonyltetracyclo[4.4.0.1 2,5 .1 7,10 ]dodecane represented by following Formula (23) was produced in a total yield of 61% with a conversion from the mixture of 3-hydroxy-8-methoxycarbonyltetracyclo[4.4.0.1 2,5 .1 7,10 ]dodecane and 3-hydroxy-9-methoxycarbonyltetracyclo[4.4.0.1 2,5 .1 7,10 ]dodecane of 87%.
• reaction mixture was analyzed by gas chromatography to find that 1-octyl isopropenyl ether, 2,2-bis(1-octyloxy)propane, and octyl acetate were produced in yields of 78%, 4%, and 16%, respectively, with a conversion from 1-octanol of 98%.
• the reaction mixture was analyzed by gas chromatography to find that 1-octyl isopropenyl ether, 2,2-bis(1-octyloxy)propane, and octyl acetate were produced in yields of 67%, 6%, and 14%, respectively, with a conversion from 1-octanol of 93%.
• the reaction mixture was analyzed by gas chromatography to find that 1-octyl vinyl ether, octyl acetate, and 1-(1-octyloxy)ethyl acetate were produced in yields of 58%, 3%, and 21%, respectively, with a conversion from 1-octanol of 100%.
• the reaction mixture was analyzed by gas chromatography to find that triethylene glycol divinyl ether, triethylene glycol monovinyl ether, and triethylene glycol monovinyl ether monoacetate were produced in yields of 63%, 3%, and 18%, respectively, with a conversion from triethylene glycol of 100%.

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